[R] How to count combinations

Dear all, Need a help. I would like to count combination of two columns: structure(list(V1 = structure(c(4L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 2L, 2L, 3L, 3L, 3L, 3L, 3L, 3L, 3L), .Label = c(23, 55, 67, Env), class = factor), V2 = structure(c(9L, 7L, 7L, 7L, 2L, 1L, 11L, 11L, 11L,

Re: [R] How to count combinations

Hello, Your dataset seems to have a problem, the first row should the columns' names. If I'm right, nms - levels(dat[[1]])[dat[1,1]] nms[2] - levels(dat[[2]])[dat[1,2]] dat - dat[-1, ] names(dat) - nms with(dat, table(Env, place)) If I'm wrong, with(dat, table(V1, V2)) Hope this helps,

Re: [R] How to count combinations

.23 PR.67  #   3 3 Hope this helps. A.K. - Original Message - From: Nico Met nicome...@gmail.com To: R help r-help@r-project.org Cc: Sent: Monday, October 8, 2012 8:42 AM Subject: [R] How to count combinations Dear all, Need a help. I would like to count combination of two

Re: [R] How to count combinations

IN jk NO NW PK PR PT  # 23  1  1  0  0  1  2  3  0  0  4  # 55  0  0  1  0  0  0  0  1  0  0   #67  1  1  0  2  0  0  0  0  3  0 A.K. - Original Message - From: Nico Met nicome...@gmail.com To: R help r-help@r-project.org Cc: Sent: Monday, October 8, 2012 8:42 AM Subject: [R] How